I've heard the name PG Wodehouse, as I've spent a LOT of time in used bookstores, but never saw this cover art before, and am not familiar with his books, and he wrote 96 of them. Agatha Christie only managed 80

 Pelham Grenville Wodehouse, KBE was an English author and one of the most widely read humorists of the 20th century.

Evelyn Waugh’s praise of Wodehouse, offered for a BBC broadcast, in 1961: “Mr. Wodehouse’s idyllic world can never stale. He will continue to release future generations from captivity that may be more irksome than our own. He has made a world for us to live in and delight in.” 

the New Yorker says "Wodehouse is an anodyne to annoyances. He’s a tonic for those suffering from bearable but burdensome loads of boredom, from jadedness of outlook and dinginess of soul."

https://www.newyorker.com/books/page-turner/plenty-of-room-for-stupidity-on-p-g-wodehouse